A. On
B. From
C. By
D. At
🧠 Explanation:
In “Do you always come to the office __ bike?” the preposition “by” fits, indicating transport. For English students, this highlights preposition usage, making it a key topic for studying grammar, linguistic clarity, and sentence structure. “By” ensures accurate meaning. Understanding this improves writing precision. It’s essential for mastering grammar in communication. Studying prepositions like “by” offers insights into how language conveys method, crucial for English, journalism, and communication, ensuring clear expression in academic or professional contexts.